                       :place true}
 
    {:clothing true}  {:animate false
-                      :edible false
+                      :artifact true
+                      :consumable false
                       :place false
                       :physical-object true}
    {:consumable

   ;; restrictions on owners (e.g. {:of {:human true}}).

   ;; <preds>
   {:pred :backpack} {:artifact true
                      :clothing true}
   {:pred :bag}      {:artifact true
                      :consumable false
                      :event false

   {:pred :pizza}    {:artifact true
                      :edible true}

   {:pred :salad}    {:artifact true
                      :edible true}

   {:pred :shoe}     {:clothing true}

   {:pred :student}  {:human true}

